The present invention relates to an apparatus for pressing a secondary battery. The apparatus for pressing a secondary battery comprises a disposing member on which the secondary battery comprising an electrode assembly and a pouch is disposed, and a pressing member configured to press the secondary battery disposed on the disposing member, wherein the pressing member comprises an accommodation part pressing jig configured to press an accommodation part of the pouch, in which the electrode assembly is accommodated, in the pouch of the secondary battery disposed on the disposing member, and a sealing part pressing jig configured to press a sealing part formed along an edge surface of the accommodation part in the pouch of the secondary battery disposed on the disposing member, wherein the sealing part pressing jig is coupled to a surface of the accommodation part pressing jig corresponding to the sealing part to press the sealing part through pressing force transmitted from the accommodation part pressing jig.

The present invention relates to an apparatus for pressing a secondary battery. The apparatus for pressing a secondary battery comprises a disposing member on which the secondary battery comprising an electrode assembly and a pouch is disposed, and a pressing member configured to press the secondary battery disposed on the disposing member, wherein the pressing member comprises an accommodation part pressing jig configured to press an accommodation part of the pouch, in which the electrode assembly is accommodated, in the pouch of the secondary battery disposed on the disposing member, and a sealing part pressing jig configured to press a sealing part formed along an edge surface of the accommodation part in the pouch of the secondary battery disposed on the disposing member, wherein the sealing part pressing jig is coupled to a surface of the accommodation part pressing jig corresponding to the sealing part to press the sealing part through pressing force transmitted from the accommodation part pressing jig.

The present disclosure provides a cold-rolled steel sheet having excellent high-temperature properties and room-temperature workability, including, by weight: carbon (C): 0.0005 to 0.003%, manganese (Mn): 0.20 to 0.50%, aluminum (Al): 0.01 to 0.10%, phosphorus (P): 0.003 to 0.020%, nitrogen (N): 0.0005 to 0.004%, sulfur (S): 0.015% or less, niobium (Nb): 0.005 to 0.040%, chromium (Cr): 0.10 to 0.50%, tungsten (W): 0.02 to 0.07%, and a balance of iron (Fe) and other inevitable impurities, wherein C, Nb, and W satisfy the following relationship 1, a microstructure comprises 95 area % or more of polygonal ferrite and 5 area % or less of acicular ferrite, and the cold-rolled steel sheet comprises (Nb,W)C-based precipitates having an average size of 0.005 to 0.10 μm and a method for manufacturing the same:
0.00025≤(2×Nb/93)×(W/184)/(C/12)≤0.0015  [Relationship 1]
where, C, Nb, and W are in weight %.

The present disclosure provides a cold-rolled steel sheet having excellent high-temperature properties and room-temperature workability, including, by weight: carbon (C): 0.0005 to 0.003%, manganese (Mn): 0.20 to 0.50%, aluminum (Al): 0.01 to 0.10%, phosphorus (P): 0.003 to 0.020%, nitrogen (N): 0.0005 to 0.004%, sulfur (S): 0.015% or less, niobium (Nb): 0.005 to 0.040%, chromium (Cr): 0.10 to 0.50%, tungsten (W): 0.02 to 0.07%, and a balance of iron (Fe) and other inevitable impurities, wherein C, Nb, and W satisfy the following relationship 1, a microstructure comprises 95 area % or more of polygonal ferrite and 5 area % or less of acicular ferrite, and the cold-rolled steel sheet comprises (Nb,W)C-based precipitates having an average size of 0.005 to 0.10 μm and a method for manufacturing the same:
0.00025≤(2×Nb/93)×(W/184)/(C/12)≤0.0015  [Relationship 1]
where, C, Nb, and W are in weight %.

Disclosed herein is a battery case configured to receive an electrode assembly and an electrolytic solution therein, the electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, the battery case including a layer structure and a gas adsorption layer formed on the inner surface of the layer structure, the gas adsorption layer including a gas adsorption material layer configured to adsorb a reaction gas that may be generated within the battery case during abnormal functioning of the electrode assembly, and a blocking layer formed on an exposed surface of the gas adsorption material layer, the blocking layer configured to prevent the gas adsorption material layer from being exposed to an ambient gas during assembly of the battery case.

Disclosed herein is a battery case configured to receive an electrode assembly and an electrolytic solution therein, the electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, the battery case including a layer structure and a gas adsorption layer formed on the inner surface of the layer structure, the gas adsorption layer including a gas adsorption material layer configured to adsorb a reaction gas that may be generated within the battery case during abnormal functioning of the electrode assembly, and a blocking layer formed on an exposed surface of the gas adsorption material layer, the blocking layer configured to prevent the gas adsorption material layer from being exposed to an ambient gas during assembly of the battery case.

To solve the above problem, a pouch forming apparatus according to an embodiment of the present invention includes: a die in which a forming space is recessed inward from a top surface thereof; a partition wall partitioning the forming space into first and second forming spaces; a stripper disposed above the die and configured to descend to contact the die with the pouch film therebetween to fix the pouch film to be seated on a top surface of the die; and an electromagnetic force generation part disposed above the forming space and configured to generate electromagnetic force and configured to apply the electromagnetic force to the forming space.

To solve the above problem, a pouch forming apparatus according to an embodiment of the present invention includes: a die in which a forming space is recessed inward from a top surface thereof; a partition wall partitioning the forming space into first and second forming spaces; a stripper disposed above the die and configured to descend to contact the die with the pouch film therebetween to fix the pouch film to be seated on a top surface of the die; and an electromagnetic force generation part disposed above the forming space and configured to generate electromagnetic force and configured to apply the electromagnetic force to the forming space.

An alkaline dry battery includes a battery case, a hollow cylindrical positive electrode accommodated in the battery case, a negative electrode disposed in the hollow portion of the positive electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolytic solution contained in the positive electrode, the negative electrode and the separator. The alkaline dry battery further includes a layer principally including a compound containing a polyoxyethylene group between the positive electrode and the inner surface of the battery case.

An alkaline dry battery includes a battery case, a hollow cylindrical positive electrode accommodated in the battery case, a negative electrode disposed in the hollow portion of the positive electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolytic solution contained in the positive electrode, the negative electrode and the separator. The alkaline dry battery further includes a layer principally including a compound containing a polyoxyethylene group between the positive electrode and the inner surface of the battery case.